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A giant flying squirrel—about the size of today's house cats—once soared through the skies over what is now Southern Appalachia, gliding above rhinos, mastodons and red pandas. The discovery ...

Engineers have long designed robots that crawl, swim, fly, and even slither like snakes. But no robot has ever matched the ...

An ancient species of giant flying squirrel was found in a sinkhole lake fossil site in eastern Tennessee. Photo by Dan ...